@inproceedings{sun2016sparse,
  title={Sparse word embeddings using l1 regularized online learning},
  author={Sun, Fei and Guo, Jiafeng and Lan, Yanyan and Xu, Jun and Cheng, Xueqi},
  booktitle={Proceedings of the Twenty-Fifth International Joint Conference on Artificial Intelligence},
  pages={2915--2921},
  year={2016}
}